PERRIN 08-21 WRX/STI & 13-25 BRZ/FR-S/86/GR86 Rear Sway Bar - 16mm

This is a Perrin Performance 16mm adjustable rear sway bar, designed to fit 2008-2021 Subaru WRX and STI models, as well as 2013-2025 BRZ, FR-S, 86, and GR86 vehicles. Adding a larger rear sway bar like this one is a common way to reduce body roll during cornering, making your car feel more stable and responsive when you're taking turns. It helps balance the car's handling, often leading to a more neutral feel or even a slight oversteer bias if that's what you're aiming for.

The bar itself is 16mm in diameter, which is a good step up from many stock sway bars, offering a noticeable improvement in stiffness. Perrin is known for making well-built suspension components, and this sway bar is no exception. It's designed to be a direct replacement for your factory sway bar, making installation more straightforward. You'll likely notice a flatter cornering attitude and a more connected feel to the road after installation.